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Merck

157635

Sigma-Aldrich

7,7,8,8-Tetracyanoquinodimethane

98%

Synonim(y):

(2,5-Cyclohexadiene-1,4-diylidene)-dimalononitrile, TCNQ

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About This Item

Wzór empiryczny (zapis Hilla):
C12H4N4
Numer CAS:
Masa cząsteczkowa:
204.19
Beilstein:
1427366
Numer WE:
Numer MDL:
Kod UNSPSC:
12352103
Identyfikator substancji w PubChem:
NACRES:
NA.23

593,00 zł


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Poziom jakości

Próba

98%

Formularz

solid

mp

287-289 °C (dec.) (lit.)

Energia orbitalna

LUMO 4.6 eV 

właściwości półprzewodników

N-type (mobility=10−5 cm2/V·s)

ciąg SMILES

N#C\C(C#N)=C1/C=C\C(C=C1)=C(/C#N)C#N

InChI

1S/C12H4N4/c13-5-11(6-14)9-1-2-10(4-3-9)12(7-15)8-16/h1-4H

Klucz InChI

PCCVSPMFGIFTHU-UHFFFAOYSA-N

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Opis ogólny

7,7,8,8-Tetracyanoquinodimethane (TNCQ) is a strong electron acceptor as it has four cyano groups and π-conjugation bonds that form charge transferring chains and ion radical salts which are mainly used as p-dopants for the fabrication of a variety of semiconductor applications. [1][2][3]

Zastosowanie

Electron-acceptor molecule used to form charge-transfer superconductors.[4]
Tetrathiotetracene (TTT) and TNCQ can be thermally co-deposited to form n-type thin films with a power factor of 0.33 μWm-1K-2 and an electrical conductivity of 57 Sm-1 to fabricate thin film organic thermoelectric generators.[5] It can be used to functionalize chemical vapor deposited (CVD) graphene and form a p-doped nanocomposite that finds potential application as a conductive anode for organic solar cells (OSCs).[6] Electrochemical sensors can be developed by using TNCQ and graphene oxide to form a glassy electrode for the detection of reduced glutathione (GSH).[2]
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Piktogramy

Skull and crossbones

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Kod klasy składowania

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

dust mask type N95 (US), Eyeshields, Gloves


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Rajsapan Jain et al.
Nature, 445(7125), 291-294 (2007-01-19)
For over two decades there have been intense efforts aimed at the development of alternatives to conventional magnets, particularly materials comprised in part or wholly of molecular components. Such alternatives offer the prospect of realizing magnets fabricated through controlled, low-temperature
Liang Pan et al.
Nature communications, 11(1), 1332-1332 (2020-03-14)
Compared to transmission systems based on shafts and gears, tendon-driven systems offer a simpler and more dexterous way to transmit actuation force in robotic hands. However, current tendon fibers have low toughness and suffer from large friction, limiting the further
Characterisation of two distinctly different processes associated with the electrocrystallization of microcrystals of phase I CuTCNQ (TCNQ= 7, 7, 8, 8-tetracyanoquinodimethane)
Harris, Alexander R., et al.
Journal of Materials Chemistry, 16(45), 4397-4406 (2006)
(Pro2 H+)2 (TCNQ.-)2⋅TCNQ: an amino acid derived semiconductor.
Xiaohu Qu et al.
Angewandte Chemie (International ed. in English), 50(7), 1589-1592 (2011-02-11)
Williams, J.M. et al.
Organic Superconductors (Including Fullerenes): Synthesis, Structure, Properties, and Theory (1992)

Produkty

Fabrication procedure of organic field effect transistor device using a soluble pentacene precursor.

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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